# Nuki Smart Lock vs Studio24.bg

The clearest difference is rating: Studio24.bg at 5.0 against Nuki Smart Lock's 4.7. Studio24.bg also leads on iOS requirement (13.0 vs 16.0). Nuki Smart Lock's advantage is update cadence (every 3 weeks vs every 2 months) and ratings volume (515 vs 42). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Studio24.bg holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Nuki Smart Lock has 515 ratings behind it against 42, so its average is the more settled of the two. Written reviews complicate that: 90% of Nuki Smart Lock's written reviews are positive against 80% of Studio24.bg's, so the app with the better star average is not the one people write more warmly about.

Nuki Smart Lock ships an update every 3 weeks, Studio24.bg every 2 months. The most recent releases landed on October 20, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Nuki Smart Lock | Studio24.bg |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (515 ratings)](https://appshunter.io/ios/app/nuki-smart-lock/id1044998081/reviews) | **[5.0 (42 ratings)](https://appshunter.io/ios/app/studio24bg/id1548694962/reviews)** |
| Number of ratings | **515** | 42 |
| Positive reviews | **90.2% of reviews** | 79.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 298 MB | 2 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nuki Home Solutions GmbH](https://appshunter.io/developer/966180578) | [Beauty Partners](https://appshunter.io/developer/1548694964) |

## What reviewers say

### Nuki Smart Lock

[App page](https://appshunter.io/ios/app/nuki-smart-lock/id1044998081)

Transform your smartphone into a secure digital key for your home. Grant and manage access for family and friends, and monitor who enters and when. Enjoy convenient features like automatic unlocking and locking, with easy DIY installation and smart home integration.

**Highlights:** Turn phone into a key, Share access permissions, Activity log, Auto Unlock/Lock, Night Mode, Smart Home integration, DIY installation

**Features:** Apple Watch app

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 🔒 Secure
- 👍 Convenient features
- 🔑 Works with existing locks
- ⚙️ Customizable settings

**What reviewers complain about**

- 🐛 Occasional connectivity issues
- 🔋 Battery life concerns
- 🕰️ Slow response times
- 🤔 Confusing UI/UX

**Reported bugs**

- Unreliable geofencing
- Inconsistent unlock/lock functionality
- Buggy app updates

**Requested features**

- Improved battery status monitoring
- Customizable auto-lock/unlock timers
- Stronger HomeKit/Alexa integration
- Ability to create/share access codes


### Studio24.bg

[App page](https://appshunter.io/ios/app/studio24bg/id1548694962)

Easily book appointments at your favorite beauty salons or discover new ones nearby. Browse services, prices, and customer reviews to find the perfect salon and time slot in minutes, anytime.

**Highlights:** Book salon appointments online, Discover nearby beauty salons, Browse services and prices, Read customer reviews, Find available time slots

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Nuki Smart Lock free?

Nuki Smart Lock is free to download, with no in-app purchases.

### Is Studio24.bg free?

Studio24.bg is free to download, with no in-app purchases.

### Which has better reviews, Nuki Smart Lock or Studio24.bg?

Studio24.bg is rated higher. Nuki Smart Lock averages 4.7 out of 5 from 515 ratings, while Studio24.bg averages 5.0 from 42 ratings.

### Do Nuki Smart Lock or Studio24.bg have ads?

Neither Nuki Smart Lock nor Studio24.bg shows ads.

### Which is updated more often, Nuki Smart Lock or Studio24.bg?

Nuki Smart Lock ships an update every 3 weeks, and Studio24.bg every 2 months. Most recently, Nuki Smart Lock was updated on October 20, 2026 and Studio24.bg on October 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*